One characteristic of independent data marts is complexity for end users when they need to access data in separate data marts. This complexity is caused by not only having to access data from separate databases, but also from:

A) the possibility of a new generation of inconsistent data systems, the data marts themselves

Explanation:

These are the options for the question

A) the possibility of a new generation of inconsistent data systems, the data marts themselves.

B) lack of user training.

C) denormalized data.

D) incongruent data formats.

Data mart can be regarded as data warehouse which is oriented to particular business line. Data marts can be divided into three types and they are dependent data Mart, independent data Mart and hybrid.

Independent data marts, can be regarded as data marts that can stand on it's own , it is a system which is built and can draw data from operational /external source of data directly. Some characteristics of independent data Mart is that they are Independently built by autonomous team from each other. It should be noted that One important characteristic of independent data marts is complexity for end users when they need to access data in separate data marts. This complexity is caused by not only having to access data from separate databases, but also from the possibility of a new generation of inconsistent data systems, the data marts themselves